Question

Which one of the following is a biotic factor in an ecosystem?

a) Water b) Oxygen

c) Minerals d) Bacteria​

Answer 1

Bacteria is an biotic factor in an ecosystem.

Hope this helps you!!!

Answer 2

Among the following, bacteria is the biotic factor in an ecosystem. (Option d)

• All the living things found in the ecosystem are the biotic factors that make up the ecosystem.
• Bacteria are living microorganisms and hence biotic.
• Water, oxygen, and minerals are non-living and hence they are the abiotic factors present in the ecosystem.
• All the biotic factor relies on abiotic factor to survive.
• Therefore, in an ecosystem, both these factors have to coexist to maintain balance